Table 4.

Unadjusted and Adjusted Hazard Ratio (HR) of Progression to Death in Atypical and Typical Subtrochanteric Femoral Fractures

	Unadjusted HR (95% CI)	Adjusted HR (95% CI)
Atypical fracture	0.45 (0.27, 0.74) a	0.71 (0.40, 1.26)
Age	1.06 (1.05, 1.08) a	1.04 (1.02, 1.06) a
Female	1.48 (1.04, 2.11) a	0.92 (0.59, 1.44)
eGFR >60	0.54 (0.41, 0.72) a	0.87 (0.64, 1.20)
Charlson comorbidity score	1.53 (1.43, 1.63) a	1.44 (1.32, 1.58) a
Type 2 diabetes mellitus	1.17 (0.88, 1.56)	0.80 (0.57, 1.12)
Race
Chinese	1.00	1.00
Malay	1.40 (0.98, 2.02)	1.50 (1.02, 2.22) a
Indian/other	0.95 (0.54, 1.69)	1.18 (0.63, 2.20)
Bisphosphonate	0.90 (0.62, 1.30)	1.13 (0.73, 1.76)

CI = confidence interval; eGFR = estimated glomerular filtration rate.

^a p < 0.05.